Which of the following were effects of the growth of agriculture in the Midwest? □Safer and more versatile railroads made it easier to travel and settle the West.

□Refrigerator cars helped the meatpacking industry to grow.

□ Longer rail lines made it easier to send crops to markets.

□ New railroads brought minerals and raw materials to iron and steel mills.

"the plan of removing the aboriginal people who yet remain within the settled portions of the united states . . approaches its consummation. . an extensive region . . has been assigned for their permanent residence. it has been divided into districts and allotted among them. many have already removed and others are preparing to go. . " removal of southern indians to indian territory, 1835 this passage is most closely related to a) imperialism. b) the civil war. c) westward expansion. d) the french indian war.